"Noooooo!" He stood there frozen. He couldn't have killed his wife. Why was his master telling him this? The force choke hadn't killed her, he was sure of it. He wanted to kill her then, but he couldn't do it, he loved her. Why had she betrayed him? It was Obi-wan. It was Obi-wan who cut off him legs and left him to die. Everyone he had once loved was gone. They left him. Everyone, except his new master. Palpatine wanted to help him save his wife. Palpatine was his friend, his only friend.
His master had left him to work on his plans for a new weapon. This ultimate weapon would hold the galaxy in terror, The Death Star. Vader was alone in his cold body. He didn't feel human, not physically, not emotionally. He was alone for the time being and his master was handling things just fine. He could escape for a few seconds.
It was deja voo all over again; only instead of kneeling at his mother grave it was his wife's. "Padme." He tried to make his voice sound soft, but it was impossible. He was hiding behind this mask, it was only meant for terror not kindness. He had turned himself into a monster. It was his destiny to remain this way, there was nothing to sway him, everyone he once loved had left him. He finally accepted it, he was Darth Vader.